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Technical Data Sheet
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124779-B21 — Technical Data Sheet

✓ Verified by PartsTable
HPE · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

HP 124779-B21 processor 0.55 GHz 0.512 MB L2. Key specifications include special_features: P3 550 OPTION KIT, end_item_identification: 5895-01-467-7469. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-01-506-7322, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ 124779-B21
NSN: 5895-01-506-7322
FSC: 5895
CAGE: 65685 — COMPAQ COMPUTER CORP. (USA)
SPECIFICATIONS
special_featuresP3 550 OPTION KIT
end_item_identification5895-01-467-7469
NSN5895-01-506-7322
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: HPE CAP: 0.512MB HP 124779-B21 processor 0.55 GHz 0.512 MB L2 TITLE COMPONENT PN 124779-B21 MFR HPE HP 124779-B21 processo
KEY FEATURES
•
0.512MB Capacity
TYPICAL APPLICATIONS
  • Enterprise virtualization host density upgrades
  • Database server performance scaling
  • AI/ML inference workloads
  • High-performance computing (HPC) clusters
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION5895-01-467-7469
SPECIAL FEATURESP3 550 OPTION KIT
END ITEM IDENTIFICATION5895-01-467-7469
SPECIAL FEATURESP3 550 OPTION KIT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
99002B8016Interchangeable
interchangeable cross-reference
interchangeable
99002B8016-2Interchangeable
interchangeable cross-reference
interchangeable
123738-001Interchangeable
interchangeable cross-reference
interchangeable
99002B8016-7Interchangeable
interchangeable cross-reference
interchangeable
283697-B21Interchangeable
interchangeable cross-reference
interchangeable
99002B8016-3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMATSourcing: other
RELATED PARTS 6
P26325-B21
HPE MR216i-a Gen10 Plus x16 Lanes without Cache NVMe/SAS 12G Controller
P05173-B21
HPE ProLiant DL380 Gen10 Plus 24SFF NC Configure-to-order Server
P52532-B21
HPE ProLiant DL380 Gen11 8LFF NC Configure-to-order Server
P52535-B21
HPE ProLiant DL380 Gen11 24SFF NC Configure-to-order Server
C3971-67903
RSTRD C3971-67903
A7861-65446
KBD, USB, PC-105, Carbon, ABF, RohS
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FREQUENTLY ASKED QUESTIONS
What is 124779-B21?
124779-B21 is a HP 124779-B21 processor 0.55 GHz 0.512 MB L2 manufactured by HPE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 124779-B21?
There are 6 known substitutes for 124779-B21: 99002B8016, 99002B8016-2, 123738-001 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 124779-B21?
124779-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-01-506-7322. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026